A power source is turned on by pivoting of an operation protrusion of a power source dial which protrudes further than a cylindrical outer edge of a grip section, and a shutter button is provided in a position closer to a front side of the camera than a pivoting center of the power source dial and pivots on the pivoting center of the power source dial so as to be pushed down. Current through the motor is monitored and motor speed is determined in response to monitored motor current. The content sources can be DVD, CD, CD-ROM, hard disk, RAM, Flash memory or remote sources accessible over a network, such as the Internet. The permanent magnets of adjacent rotor element sets andor the poles of adjacent stator sets are offset from each other in the axial direction to cancel the effects of cogging torque produce by each of the sets. The first and second diverted portions converge at a merging location.